The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Equivalent Circuit Modelling of FFR Transducer Array for Sonar System Design

소나 시스템 설계를 위한 FFR 트랜스듀서 어레이의 등가회로 모델링

  • Kim, In-Dong (Dept. of Electrical Engineering, Pukyong Nat. University) ;
  • Choi, Seung-Soo (Dept. of Electrical Eng., Pukyong Nat. University) ;
  • Lee, Haksue (The 6th R&D Institute-1, Agency for Defense Development) ;
  • Lee, Seung Woo (The 6th R&D Institute-1, Agency for Defense Development) ;
  • Moon, Wonkyu (Dept. of Mechanical Engineering, Pohang Univ. of Science and Technology)
  • Received : 2017.01.07
  • Accepted : 2017.03.28
  • Published : 2017.04.01
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Abstract

Free-Flooded Ring (FFR) transducer array for use in Sonar system can be driven with large amplitude in a wide frequency band due to its structural characteristics, in which two resonances of a ring mode (1st radial mode) and an inner cavity vibration mode occur in a low frequency band. Since its sound wave generation characteristics are not influenced by the water pressure, the FFR transducer array is widely used in the deep sea. So FFR has been recognized as a low-frequency active sound source and has received much attention ever since. In order to utilize the FFR transducer array for SONAR systems in military and industrial applications, its equivalent electric circuit model is necessary especially to design the matching circuit between the driving power amplifier and the FFR transducer array. Thus this paper proposes the equivalent electric circuit model of FFR transducer array by using measured values of parameter, and suggest the improved method of parameter identification. Finally it verifies the effectiveness of the proposed circuit model of FFR transducer array by experimental measurements.

Keywords

References

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